From fb01a4aeb3fca0f56348e44cbd0aefeb551aecc9 Mon Sep 17 00:00:00 2001
From: "advisory-database[bot]"
 <45398580+advisory-database[bot]@users.noreply.github.com>
Date: Tue, 15 Oct 2024 18:08:51 +0000
Subject: [PATCH] Publish GHSA-4jf8-g8wp-cx7c

---
 .../GHSA-4jf8-g8wp-cx7c.json                  | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 advisories/github-reviewed/2024/10/GHSA-4jf8-g8wp-cx7c/GHSA-4jf8-g8wp-cx7c.json

diff --git a/advisories/github-reviewed/2024/10/GHSA-4jf8-g8wp-cx7c/GHSA-4jf8-g8wp-cx7c.json b/advisories/github-reviewed/2024/10/GHSA-4jf8-g8wp-cx7c/GHSA-4jf8-g8wp-cx7c.json
new file mode 100644
index 00000000000..e57b736598b
--- /dev/null
+++ b/advisories/github-reviewed/2024/10/GHSA-4jf8-g8wp-cx7c/GHSA-4jf8-g8wp-cx7c.json
@@ -0,0 +1,70 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-4jf8-g8wp-cx7c",
+  "modified": "2024-10-15T18:07:26Z",
+  "published": "2024-10-15T18:07:26Z",
+  "aliases": [
+    "CVE-2024-47080"
+  ],
+  "summary": "Matrix JavaScript SDK's key history sharing could share keys to malicious devices",
+  "details": "### Impact\nIn matrix-js-sdk versions 9.11.0 through 34.7.0, the method `MatrixClient.sendSharedHistoryKeys` is vulnerable to interception by malicious homeservers.  The method implements functionality proposed in [MSC3061](https://github.com/matrix-org/matrix-spec-proposals/pull/3061) and can be used by clients to share historical message keys with newly invited users, granting them access to past messages in the room.\n\nHowever, it unconditionally sends these \"shared\" keys to all of the invited user's devices, regardless of whether the user's cryptographic identity is verified or whether the user's devices are signed by that identity. This allows the attacker to potentially inject its own devices to receive sensitive historical keys without proper security checks.\n\nNote that this only affects clients running the SDK with the legacy crypto stack. Clients using the new Rust cryptography stack (i.e. those that call `MatrixClient.initRustCrypto()` instead of `MatrixClient.initCrypto()`) are unaffected by this vulnerability, because `MatrixClient.sendSharedHistoryKeys()` raises an exception in such environments.\n\n### Patches\nFixed in matrix-js-sdk 34.8.0 by removing the vulnerable functionality.\n\n### Workarounds\nRemove use of affected functionality from clients.\n\n### References\n- [MSC3061](https://github.com/matrix-org/matrix-spec-proposals/pull/3061)\n\n### For more information\nIf you have any questions or comments about this advisory, please email us at [security at matrix.org](mailto:security@matrix.org).",
+  "severity": [
+    {
+      "type": "CVSS_V4",
+      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "npm",
+        "name": "matrix-js-sdk"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "9.11.0"
+            },
+            {
+              "fixed": "34.8.0"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-4jf8-g8wp-cx7c"
+    },
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47080"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3061"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/matrix-org/matrix-js-sdk/commit/2fb1e659c81f75253c047832dc9dcc2beddfac5f"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/matrix-org/matrix-js-sdk"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-200",
+      "CWE-287"
+    ],
+    "severity": "HIGH",
+    "github_reviewed": true,
+    "github_reviewed_at": "2024-10-15T18:07:26Z",
+    "nvd_published_at": "2024-10-15T15:15:12Z"
+  }
+}
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